The parent of Pizza Inn Friday filed a “shelf registration” statement with federal regulators that would allow it to sell up to $10 million in stock in the company.

Pizza Inn, based in The Colony, has attracted interest from investors with the expansion of its Pie Five fast casual pizza concept. Consumers build their own individual-sized pizzas which are ready in about five minutes.

The company, in papers filed with the Security and Exchange Commission, said it expects “the net proceeds from any sale of our common stock under this prospectus will be used primarily to continue developing new company-owned Pie Five restaurants in the Dallas - Fort Worth and other metropolitan areas.”

The company, which also owns the Pizza Inn chain, has about 9.3 million shares of common stock outstanding.

Pie Five, the company’s growth vehicle, has 21 locations in seven states, including Texas, Florida, Kansas and Utah. More than 200 franchised locations, in 12 states and Washington, DC., are in the works.

The first Pie Five opened in June 2011 in Ft. Worth. At the beginning of that year the stock was trading at about $2 a share. Midday Friday the stock was trading at $7.39 up 15.11 percent from Thursday's close.